mirror of
https://codeup.aliyun.com/67c68d4e484ca2f0a13ac3c1/ydc/jsowell-charger-web.git
synced 2026-04-22 03:55:17 +08:00
Merge branch 'dev-new' into dev-new-rabbitmq
# Conflicts: # jsowell-netty/src/main/java/com/jsowell/netty/server/yunkuaichong/NettyServerChannelInitializer.java
This commit is contained in:
Guoqs
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package com.jsowell.netty.decoder;
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import com.jsowell.common.util.BytesUtil;
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import com.jsowell.common.util.CRC16Util;
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import io.netty.buffer.ByteBuf;
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import io.netty.channel.ChannelHandlerContext;
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import io.netty.handler.codec.ByteToMessageDecoder;
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import io.netty.handler.codec.DecoderException;
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import lombok.extern.slf4j.Slf4j;
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import java.util.List;
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@Slf4j
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public class YkcProtocolDecoder extends ByteToMessageDecoder {
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@Override
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protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception {
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log.info("YkcProtocolDecoder.decode");
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// 检查起始标志是否为0x68
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if (in.readableBytes() < 5) {
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return; // 至少需要 起始标志 (1) + 数据长度 (1) + 序列号域 (2) + 帧校验域 (1)
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}
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in.markReaderIndex(); // 标记当前读取位置
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byte startFlag = in.readByte();
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log.info("startFlag: {}", BytesUtil.binary(new byte[]{startFlag}, 16));
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if (startFlag != (byte) 0x68) {
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throw new DecoderException("Invalid start flag: " + startFlag);
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}
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// 读取数据长度
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byte dataLength = in.readByte();
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if (in.readableBytes() < dataLength + 2) { // 消息体 + 帧校验域长度
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in.resetReaderIndex();
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return; // 数据不足，等待更多字节
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}
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// 读取其他字段
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short serialNumber = in.readShort(); // 序列号域
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log.info("serialNumber: {}", BytesUtil.printHexBinary(new byte[]{(byte) serialNumber}));
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byte encryptFlag = in.readByte(); // 加密标志
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log.info("encryptFlag: {}", BytesUtil.printHexBinary(new byte[]{encryptFlag}));
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byte frameType = in.readByte(); // 帧类型标志
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log.info("frameType: {}", BytesUtil.printHexBinary(new byte[]{frameType}));
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// 读取消息体
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byte[] messageBody = new byte[dataLength - 4]; // 消息体长度 = 数据长度 - 固定字段长度
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log.info("messageBody: {}", BytesUtil.printHexBinary(messageBody));
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in.readBytes(messageBody);
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// 读取帧校验域
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short receivedCrc = in.readShort();
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// 计算 CRC
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short calculatedCrc = CRC16Util.calculateCrc(serialNumber, encryptFlag, frameType, messageBody);
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if (calculatedCrc != receivedCrc) {
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throw new DecoderException("CRC check failed. Expected: " + receivedCrc + ", Calculated: " + calculatedCrc);
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}
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// 构造消息对象并传递给下一个处理器
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ProtocolMessage message = new ProtocolMessage(startFlag, dataLength, serialNumber, encryptFlag, frameType, messageBody, receivedCrc);
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out.add(message);
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}
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public static int bcdToDecimal(byte bcd1, byte bcd2) {
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// BCD码转换为十进制
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int high = (bcd1 >> 4) & 0x0F; // 高4位
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int low = bcd1 & 0x0F; // 低4位
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int high2 = (bcd2 >> 4) & 0x0F;
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int low2 = bcd2 & 0x0F;
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// 将BCD码拼接成十进制数
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return (high * 1000) + (low * 100) + (high2 * 10) + low2;
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}
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// 自定义消息类
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public static class ProtocolMessage {
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private final byte startFlag;
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private final byte dataLength;
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private final short serialNumber;
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private final byte encryptFlag;
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private final byte frameType;
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private final byte[] messageBody;
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private final short crc;
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public ProtocolMessage(byte startFlag, byte dataLength, short serialNumber, byte encryptFlag, byte frameType, byte[] messageBody, short crc) {
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this.startFlag = startFlag;
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this.dataLength = dataLength;
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this.serialNumber = serialNumber;
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this.encryptFlag = encryptFlag;
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this.frameType = frameType;
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this.messageBody = messageBody;
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this.crc = crc;
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}
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// Getter methods...
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public byte getStartFlag() { return startFlag; }
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public byte getDataLength() { return dataLength; }
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public short getSerialNumber() { return serialNumber; }
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public byte getEncryptFlag() { return encryptFlag; }
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public byte getFrameType() { return frameType; }
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public byte[] getMessageBody() { return messageBody; }
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public short getCrc() { return crc; }
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}
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}
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@@ -0,0 +1,141 @@
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package com.jsowell.netty.decoder;
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import com.jsowell.common.constant.Constants;
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import io.netty.buffer.ByteBuf;
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import io.netty.channel.ChannelHandlerContext;
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import io.netty.handler.codec.ByteToMessageDecoder;
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import lombok.extern.slf4j.Slf4j;
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import java.nio.charset.StandardCharsets;
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import java.util.List;
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/**
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* 友电协议解码器
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*/
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@Slf4j
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public class YouDianProtocolDecoder extends ByteToMessageDecoder {
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private static final int HEADER_LENGTH_DNY = 3; // "DNY" 包头的长度
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private static final int HEADER_LENGTH_68 = 1; // 68 包头的长度
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// 构造函数，初始化起始标志
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public YouDianProtocolDecoder() {}
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@Override
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protected void decode(ChannelHandlerContext ctx, ByteBuf buffer, List<Object> out) throws Exception {
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// log.info("StartAndLengthFieldFrameDecoder.decode");
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// 记录包头开始的index
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int beginReader;
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// 循环查找包头
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while (true) {
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if (buffer.readableBytes() < Math.min(HEADER_LENGTH_DNY, HEADER_LENGTH_68)) {
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return; // 数据长度不足，等待更多数据
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}
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// 获取包头开始的index
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beginReader = buffer.readerIndex();
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buffer.markReaderIndex();
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// 判断是否为DNY包头或68包头
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if (isStartOfDnyHeader(buffer, beginReader) || isStartOf68Header(buffer, beginReader)) {
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break; // 读到了协议的开始标志，结束while循环
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}
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// 未读到包头，略过一个字节
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buffer.resetReaderIndex();
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buffer.readByte();
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}
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// 检查包头是否是 "DNY"
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if (buffer.readableBytes() >= HEADER_LENGTH_DNY) {
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byte[] headerBytes = new byte[HEADER_LENGTH_DNY];
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buffer.getBytes(beginReader, headerBytes, 0, HEADER_LENGTH_DNY);
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String header = new String(headerBytes, StandardCharsets.UTF_8);
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// log.info("检查包头是否是DNY, header:{}", header);
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if (Constants.EBIKE_HEADER.equals(header)) {
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// 处理 DNY 协议
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decodeDnyMessage(buffer, out, beginReader);
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return;
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}
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}
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// 检查包头是否是 68 协议
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if (buffer.readableBytes() >= HEADER_LENGTH_68) {
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if (buffer.getUnsignedByte(beginReader) == 0x68) {
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// 处理 68 协议
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decode68Message(buffer, out, beginReader);
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return;
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}
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}
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// 未知协议，还原读指针
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buffer.resetReaderIndex();
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}
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// 判断是否为DNY包头
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private boolean isStartOfDnyHeader(ByteBuf buffer, int beginReader) {
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if (buffer.readableBytes() >= HEADER_LENGTH_DNY) {
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byte[] headerBytes = new byte[HEADER_LENGTH_DNY];
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buffer.getBytes(beginReader, headerBytes, 0, HEADER_LENGTH_DNY);
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String header = new String(headerBytes, StandardCharsets.UTF_8);
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return Constants.EBIKE_HEADER.equals(header);
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}
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return false;
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}
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// 判断是否为68包头
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private boolean isStartOf68Header(ByteBuf buffer, int beginReader) {
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if (buffer.readableBytes() >= HEADER_LENGTH_68) {
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return buffer.getUnsignedByte(beginReader) == 0x68;
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}
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return false;
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}
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// 处理68协议消息
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private void decode68Message(ByteBuf buffer, List<Object> out, int beginReader) {
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// 检查剩余数据是否足够
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if (buffer.readableBytes() < HEADER_LENGTH_68 + 1 + 2) {
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buffer.readerIndex(beginReader);
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return;
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}
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// 获取消息长度
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int length = buffer.getUnsignedByte(beginReader + HEADER_LENGTH_68);
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// 检查剩余数据是否足够
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if (buffer.readableBytes() < HEADER_LENGTH_68 + 1 + length + 2) {
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buffer.readerIndex(beginReader);
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return;
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}
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// 读取 data 数据 最后+2是帧校验域长度
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ByteBuf frame = buffer.retainedSlice(beginReader, HEADER_LENGTH_68 + 1 + length + 2);
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buffer.readerIndex(beginReader + HEADER_LENGTH_68 + 1 + length + 2);
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out.add(frame);
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}
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// 处理DNY协议消息
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private void decodeDnyMessage(ByteBuf buffer, List<Object> out, int beginReader) {
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// 检查剩余数据是否足够
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if (buffer.readableBytes() < HEADER_LENGTH_DNY + 1) {
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buffer.readerIndex(beginReader);
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return;
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}
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// 获取消息长度
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int length = buffer.getUnsignedByte(beginReader + HEADER_LENGTH_DNY);
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// log.info("获取消息长度, length:{}", length);
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// 检查剩余数据是否足够
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if (buffer.readableBytes() < HEADER_LENGTH_DNY + 1 + length) {
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buffer.readerIndex(beginReader);
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return;
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}
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// 读取 data 数据
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ByteBuf frame = buffer.retainedSlice(beginReader, HEADER_LENGTH_DNY + length + 2);
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buffer.readerIndex(beginReader + HEADER_LENGTH_DNY + length + 2);
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out.add(frame);
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}
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}
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@@ -0,0 +1,144 @@
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package com.jsowell.netty.decoder;
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import com.jsowell.common.constant.Constants;
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import com.jsowell.common.core.domain.ykc.YKCDataProtocol;
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import io.netty.buffer.ByteBuf;
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import io.netty.channel.ChannelHandlerContext;
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import io.netty.handler.codec.ByteToMessageDecoder;
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import lombok.extern.slf4j.Slf4j;
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import java.nio.charset.StandardCharsets;
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import java.util.List;
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@Slf4j
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public class YunKuaiChongDecoder extends ByteToMessageDecoder {
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private static final int HEADER_LENGTH_DNY = 3; // "DNY" 包头的长度
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private static final int HEADER_LENGTH_68 = 1; // 68 包头的长度
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// 构造函数，初始化起始标志
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public YunKuaiChongDecoder() {}
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@Override
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protected void decode(ChannelHandlerContext ctx, ByteBuf buffer, List<Object> out) throws Exception {
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// log.info("StartAndLengthFieldFrameDecoder.decode");
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// 记录包头开始的index
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int beginReader;
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// 循环查找包头
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while (true) {
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if (buffer.readableBytes() < Math.min(HEADER_LENGTH_DNY, HEADER_LENGTH_68)) {
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return; // 数据长度不足，等待更多数据
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}
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// 获取包头开始的index
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beginReader = buffer.readerIndex();
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buffer.markReaderIndex();
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// 判断是否为DNY包头或68包头
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if (isStartOfDnyHeader(buffer, beginReader) || isStartOf68Header(buffer, beginReader)) {
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break; // 读到了协议的开始标志，结束while循环
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}
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// 未读到包头，略过一个字节
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buffer.resetReaderIndex();
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buffer.readByte();
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}
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// 检查包头是否是 "DNY"
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if (buffer.readableBytes() >= HEADER_LENGTH_DNY) {
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byte[] headerBytes = new byte[HEADER_LENGTH_DNY];
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buffer.getBytes(beginReader, headerBytes, 0, HEADER_LENGTH_DNY);
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String header = new String(headerBytes, StandardCharsets.UTF_8);
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// log.info("检查包头是否是DNY, header:{}", header);
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if (Constants.EBIKE_HEADER.equals(header)) {
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// 处理 DNY 协议
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decodeDnyMessage(buffer, out, beginReader);
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return;
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}
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}
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// 检查包头是否是 68 协议
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if (buffer.readableBytes() >= HEADER_LENGTH_68) {
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if (buffer.getUnsignedByte(beginReader) == 0x68) {
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// 处理 68 协议
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decode68Message(buffer, out, beginReader);
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return;
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}
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}
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// 未知协议，还原读指针
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buffer.resetReaderIndex();
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}
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// 判断是否为DNY包头
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private boolean isStartOfDnyHeader(ByteBuf buffer, int beginReader) {
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if (buffer.readableBytes() >= HEADER_LENGTH_DNY) {
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byte[] headerBytes = new byte[HEADER_LENGTH_DNY];
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buffer.getBytes(beginReader, headerBytes, 0, HEADER_LENGTH_DNY);
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String header = new String(headerBytes, StandardCharsets.UTF_8);
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return Constants.EBIKE_HEADER.equals(header);
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}
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return false;
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}
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// 判断是否为68包头
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private boolean isStartOf68Header(ByteBuf buffer, int beginReader) {
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if (buffer.readableBytes() >= HEADER_LENGTH_68) {
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return buffer.getUnsignedByte(beginReader) == 0x68;
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}
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return false;
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}
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// 处理68协议消息
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private void decode68Message(ByteBuf buffer, List<Object> out, int beginReader) {
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// 检查剩余数据是否足够
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if (buffer.readableBytes() < HEADER_LENGTH_68 + 1 + 2) {
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buffer.readerIndex(beginReader);
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return;
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}
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// 获取消息长度
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int length = buffer.getUnsignedByte(beginReader + HEADER_LENGTH_68);
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// 检查剩余数据是否足够
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if (buffer.readableBytes() < HEADER_LENGTH_68 + 1 + length + 2) {
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buffer.readerIndex(beginReader);
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return;
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}
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// 读取 data 数据 最后+2是帧校验域长度
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ByteBuf frame = buffer.retainedSlice(beginReader, HEADER_LENGTH_68 + 1 + length + 2);
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buffer.readerIndex(beginReader + HEADER_LENGTH_68 + 1 + length + 2);
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// 转为YKCDataProtocol对象
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byte[] bytes = new byte[HEADER_LENGTH_68 + 1 + length + 2];
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frame.readBytes(bytes);
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YKCDataProtocol ykcDataProtocol = new YKCDataProtocol(bytes);
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out.add(ykcDataProtocol);
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}
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// 处理DNY协议消息
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private void decodeDnyMessage(ByteBuf buffer, List<Object> out, int beginReader) {
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// 检查剩余数据是否足够
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if (buffer.readableBytes() < HEADER_LENGTH_DNY + 1) {
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buffer.readerIndex(beginReader);
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return;
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}
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// 获取消息长度
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int length = buffer.getUnsignedByte(beginReader + HEADER_LENGTH_DNY);
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// log.info("获取消息长度, length:{}", length);
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// 检查剩余数据是否足够
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if (buffer.readableBytes() < HEADER_LENGTH_DNY + 1 + length) {
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buffer.readerIndex(beginReader);
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return;
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}
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// 读取 data 数据
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ByteBuf frame = buffer.retainedSlice(beginReader, HEADER_LENGTH_DNY + length + 2);
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buffer.readerIndex(beginReader + HEADER_LENGTH_DNY + length + 2);
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out.add(frame);
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}
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}
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